摘要:
A cam thrust assembly that includes at least one rotatable cam plate and at least one roller retaining recess defined in the cam plate. The roller retaining recess has an inner radius and an outer radius and defines a ramp surface having a shallow portion and a deep portion. The cam thrust assembly further includes a tapered roller positioned in the roller retaining recess on the ramp surface for movement along the ramp surface. At least a portion of the ramp surface is curved between the shallow portion and the deep portion in the direction of the roller travel.
摘要:
An electronic system for aggregated pricing of linked multi-leg (e.g., equity/option and option/option) asset packages with an additional link to an automated broker system for trading the linked asset packages are disclosed. The invention provides methodology and apparatus to electronically produce aggregated price quotes for packages of instruments designed to represent traditional trading strategies involving cash and their derivatives (e.g., stock and equity options). The system develops packages according to specified strategies, and prices the packages based on the national best bid and offer (NBBO) or direct input from participating market makers and investors. The packages are designed for easy understanding by traditional investors and designed for trading through a single order. These packages are desirable over separately trading the asset and its derivative (e.g., equity and option) instruments because they transfer market volatility risk from the investor to the institution by requiring market makers to agree to the aggregated price of the package prior to executing any trades. Certain linked packages, such as most stocks and options, cannot be traded together on a single floor of an exchange due to restrictions by the Securities and Exchange Commission (SEC) regarding side-by-side trading and integrated market making of most stocks and options. This invention provides an electronic process for synthetic side-by-side trading across separate trading locations (e.g., equity and option exchanges and within the existing rules of the SEC). The electronic process follows traditional rules regarding the manual handling of combination orders involving multiple asset types. The process significantly improves efficiency over manual handling resulting in a system that is scalable to high trade volumes.
摘要:
A follower mechanism movable along an axis within a bore including an alignment groove. The follower mechanism includes a bucket with a cylindrical inner surface and a cylindrical outer surface, and a yoke positioned at least partially within the bucket, the yoke including a bottom wall and two opposed sidewalls depending upwardly therefrom, each sidewall defining a shaft aperture. A shaft with first and second ends is received in the shaft apertures, and a roller follower is rotatably received on the shaft such that a portion of the roller follower extends axially outwardly beyond the bucket.
摘要:
A bearing assembly including a connecting rod (30) with a first end (32) and a second end (36), the second end (36) defining a first outer raceway (44a) and a second outer raceway (44b) with a thrust ring (60) therebetween, a crankshaft (10) defining a cylindrical inner raceway (14), a first plurality of radial roller elements (52a) disposed between the first outer raceway (44a) and the inner raceway (14), and a second plurality of radial roller elements (52b) disposed between the second outer raceway (44b) and the inner raceway (14). An axial length of at least one of the first radial roller elements (52a) is greater than an axial length of the first outer raceway (44a) and the axial length of at least one of the second radial roller elements (52b) is greater than an axial length of the second outer raceway (44b).
摘要:
A bearing assembly including a connecting rod (30) with a first end (32) and a second end (36), the second end (36) defining a first outer raceway (44a) and a second outer raceway (44b) with a thrust ring (60) therebetween, a crankshaft (10) defining a cylindrical inner raceway (14), a first plurality of radial roller elements (52a) disposed between the first outer raceway (44a) and the inner raceway (14), and a second plurality of radial roller elements (52b) disposed between the second outer raceway (44b) and the inner raceway (14). An axial length of at least one of the first radial roller elements (52a) is greater than an axial length of the first outer raceway (44a) and the axial length of at least one of the second radial roller elements (52b) is greater than an axial length of the second outer raceway (44b).
摘要:
A thrust bearing assembly comprising a retainer cage and a plurality of rollers positioned in roller retaining pockets spaced about the retainer cage. At least one of the pockets is an angled pocket having a radial axis that is non-parallel relative to a retainer cage centerline passing through the angled pocket.
摘要:
A follower mechanism movable along an axis within a bore including an alignment groove. The follower mechanism includes a bucket with a cylindrical inner surface and a cylindrical outer surface, and a yoke positioned at least partially within the bucket, the yoke including a bottom wall and two opposed sidewalls depending upwardly therefrom, each sidewall defining a shaft aperture. A shaft with first and second ends is received in the shaft apertures, and a roller follower is rotatably received on the shaft such that a portion of the roller follower extends axially outwardly beyond the bucket.
摘要:
A cam locking assembly for an adjustable steering column. The assembly includes a tie bolt that is secured relative to the steering column. A lever member is positioned for rotation about the tie bolt. A caming unit is positioned about the tie bolt adjacent the lever member. The caming unit has a roller assembly positioned between a pair of opposed cam plates. One of the cam plates is associated with the lever member and rotates therewith and the other plate is fixed relative to such rotation. Each cam plate has a plurality of ramped recesses on its internal surface such that rotation of the one plate causes the rollers to ride up the ramps such that the plates are pushed apart. The pushed apart ramps cause clamping upon the steering column to lock its position.